Home / 2,533.28-3,781.69-2,161.49

Finding the Fourth Proportional to 2,533.28, 3,781.69 and 2,161.49

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Solution

The fourth proportional to 2,533.28, 3,781.69 and 2,161.49 is: 3,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,533.28 : 3,781.69 = 2,161.49 : x
  2. Step 2: Convert to fraction form
    2,533.28/3,781.69 = 2,161.49/x
  3. Step 3: Cross multiply
    2,533.28x = 3,781.69 × 2,161.49
  4. Step 4: Simplify right side
    2,533.28x = 8,174,060.81
  5. Step 5: Solve for x
    x = 8,174,060.81/2,533.28
  6. Step 6: Final answer
    x = 3,226.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.